Qt5 Vulkan

John Doe 2

Is there a way to enable Vulkan using the Windows installer? Or do you have to manually include it when building from source?

Note: I got the Vulkan SDK (1.2.182.0) from LunarG and have the VULKAN_SDK set to the correct path.

SGaist

Hi and welcome to devnet,

Based on the documentation of QVulkanWindow you should only need to install the SDK on Windows.

What is your current issue ?
Did you try one of the Vulkan example ?

John Doe 2

It appears Qt can't find the necessary Vulkan headers, since its symbols are marked as unknown. Is it possible to see where Qt is looking for these headers? Or does it only use VULKAN_SDK?

SGaist

Did you try to build one of Qt's Vulkan examples ?

John Doe 2

Oh sorry!
What I meant is that when trying to build any of the examples, Qt can't find any Vulkan symbols.
It seems it can't find vulkan.h, but isn't generating any explicit errors due to:

// In qvulkaninstance.h:
#if !defined(Q_CLANG_QDOC) && __has_include(<vulkan/vulkan.h>)
#include <vulkan/vulkan.h>
#else
...
#endif

SGaist

Are you building from Qt Creator ?

John Doe 2

Yes, I am building from Qt Creator.

SGaist

Did you check that

@John-Doe-2 said in Qt5 Vulkan:

VULKAN_SDK

Is defined in the Build part of the Project panel ?

John Doe 2

I can see both VULKAN_SDK and VK_SDK_PATH in Build Environment. They are both set to correct values (C:\VulkanSDK\1.2.182.0).

SGaist

Then I would add something like

INCLUDEPATH += $VULKAN_SDK/includes
LIBS += $VULKAN_SDK/lib

to the .pro file.

John Doe 2

First, excuse me for the late reply. A couple of things came up and I forgot to look into this problem until now.
Second, I reinstalled both Qt and Vulkan and it works now. I think what was happening is that I had improperly installed the Vulkan SDK, but I wasn't having any issues due to it until I tried to use it with Qt.
Thank you very much for your help, and sorry again for the delay.